Dr. Andrew S. Fletcher Profile

Dr. Andrew S. Fletcher

at MIT Lincoln Lab

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 22 May 2017 Presentation + Paper

Undersea narrow-beam optical communications field demonstration

Scott Hamilton, Cathy DeVoe, Andrew Fletcher, Igor Gaschits, Farhad Hakimi, Nicholas Hardy, Thomas Howe, Nathan Mittleman, Hemonth Rao, Marvin Scheinbart, Timothy Yarnall

Proceedings Volume 10186, 1018606 (2017) https://doi.org/10.1117/12.2264733

KEYWORDS: Remotely operated vehicles, Free space optical communications, Optical engineering, Laser scattering, Scattering, Signal attenuation, Collimation, Optical communications, Ocean optics, Forward error correction, Laser optics, Atmospheric propagation, Laser development, Receivers, Laser beam propagation, Photon counting, Absorption

Read Abstract +

Proceedings Article | 19 April 2017 Presentation

Field demonstration of multi-rate narrow-beam undersea optical communication with photon-counting and linear receivers in a turbid harbor (Conference Presentation)

Hemonth Rao, Catherine DeVoe, Andrew Fletcher, Igor Gaschits, Farhad Hakimi, Scott Hamilton, Nicholas Hardy, John Ingwersen, Richard Kaminsky, Marvin Scheinbart, Timothy Yarnall

Proceedings Volume 10096, 1009617 (2017) https://doi.org/10.1117/12.2256597

KEYWORDS: Forward error correction, Optical communications, Receivers, Geometrical optics, Optical testing, Transmitters, Metals, Light wave propagation, Avalanche photodetectors, Atmospheric propagation

Read Abstract +

Proceedings Article | 13 April 2016 Paper

A burst-mode photon counting receiver with automatic channel estimation and bit rate detection

Hemonth Rao, Catherine DeVoe, Andrew Fletcher, Igor Gaschits, Farhad Hakimi, Scott Hamilton, Nicholas Hardy, John Ingwersen, Richard Kaminsky, John Moores, Marvin Scheinbart, Timothy Yarnall

Proceedings Volume 9739, 97390H (2016) https://doi.org/10.1117/12.2222885

KEYWORDS: Receivers, Forward error correction, Transmitters, Field programmable gate arrays, Clocks, Signal attenuation, Photodetectors, Scattering, Data communications, Signal detection

Read Abstract +

Proceedings Article | 15 March 2016 Paper

Propagation modeling results for narrow-beam undersea laser communications

Andrew Fletcher, Nicholas Hardy, Scott Hamilton

Proceedings Volume 9739, 97390I (2016) https://doi.org/10.1117/12.2222890

KEYWORDS: Laser communications, Laser optics, Optical communications, Laser beam propagation, Electroluminescence, Scattering, Receivers, Light scattering, Laser scattering, Absorption, Energy transfer, Energy efficiency

Read Abstract +

Proceedings Article | 25 March 2014 Paper

Electronics design of a multi-rate DPSK modem for free-space optical communications

H. Rao, C. Browne, D. Caplan, J. Carney, M. Chavez, A. Fletcher, J. Fitzgerald, R. Kaminsky, G. Lund, S. Hamilton, R. Magliocco, O. Mikulina, R. Murphy, M. Seaver, M. Scheinbart, N. Spellmeyer, J. Wang

Proceedings Volume 8971, 89710Y (2014) https://doi.org/10.1117/12.2057574

KEYWORDS: Field programmable gate arrays, Clocks, Process control, Electronics, Transmitters, Interfaces, Receivers, Beam controllers, Control systems, Logic

Read Abstract +

Proceedings Article | 25 March 2014 Paper

A multi-rate DPSK modem for free-space laser communications

N. Spellmeyer, C. Browne, D. Caplan, J. Carney, M. Chavez, A. Fletcher, J. Fitzgerald, R. Kaminsky, G. Lund, S. Hamilton, R. Magliocco, O. Mikulina, R. Murphy, H. Rao, M. Scheinbart, M. Seaver, J. Wang

Proceedings Volume 8971, 89710J (2014) https://doi.org/10.1117/12.2057568

KEYWORDS: Receivers, Transmitters, Clocks, Data communications, Free space optical communications, Electro optics, Laser communications, Interfaces, Field programmable gate arrays, Electronics

Read Abstract +

Proceedings Article | 19 March 2013 Paper

Comparing adaptive optics approaches for NASA LCRD Ground Station #2

Jason Stewart, Daniel Murphy, John Moores, Andrew Fletcher, Keith Bonneau

Proceedings Volume 8610, 86100M (2013) https://doi.org/10.1117/12.2010126

KEYWORDS: Adaptive optics, Staring arrays, Error analysis, Fiber couplers, Wavefronts, Telescopes, Relays, Turbulence, Laser communications, Wavefront sensors

Read Abstract +

Showing 5 of 7 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years